EP 0173697 B1 19881117 - FLYBACK SWITCHING REGULATOR
Title (en)
FLYBACK SWITCHING REGULATOR
Publication
Application
Priority
US 58659184 A 19840306
Abstract (en)
[origin: WO8504059A1] In a power supply having transformer coupling for regulation of voltage by a pulsing of primary current, a control circuit integrates the output voltage to obtain a measure of flux and primary current. A comparator monitors the integrated voltage to terminate a pulse of primary current prior to saturation of a core of the transformer. This insures linear operation and efficient transfer of energy from the primary to the secondary windings of the transformer. A sensor of secondary current initiates a new pulse of primary current when the secondary current has decayed to a fractional value of the peak secondary current.
IPC 1-7
IPC 8 full level
H02M 1/40 (2007.01); H02M 3/335 (2006.01)
CPC (source: EP US)
H02M 1/40 (2013.01 - EP US); H02M 3/33507 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB LI NL SE
DOCDB simple family (publication)
WO 8504059 A1 19850912; CA 1245284 A 19881122; DE 3566335 D1 19881222; EP 0173697 A1 19860312; EP 0173697 B1 19881117; IL 74292 A 19880531; IT 1181764 B 19870930; IT 8547763 A0 19850304; IT 8547763 A1 19861109; JP H0655031 B2 19940720; JP S61501605 A 19860731; TR 22121 A 19860501; US 4612610 A 19860916
DOCDB simple family (application)
US 8500056 W 19850114; CA 475500 A 19850228; DE 3566335 T 19850114; EP 85900873 A 19850114; IL 7429285 A 19850211; IT 4776385 A 19850509; JP 50030085 A 19850114; TR 2212185 A 19850306; US 58659184 A 19840306